--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Deprecated/Layers/SeriesFrameRendererFactory.cpp	Tue May 21 14:27:35 2019 +0200
@@ -0,0 +1,177 @@
+/**
+ * Stone of Orthanc
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2019 Osimis S.A., Belgium
+ *
+ * This program is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Affero General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Affero General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+
+#include "SeriesFrameRendererFactory.h"
+
+#include "FrameRenderer.h"
+
+#include <OrthancException.h>
+#include <Logging.h>
+#include <Toolbox.h>
+#include <Plugins/Samples/Common/OrthancPluginException.h>
+#include <Plugins/Samples/Common/DicomDatasetReader.h>
+
+
+namespace Deprecated
+{
+  void SeriesFrameRendererFactory::ReadCurrentFrameDataset(size_t frame)
+  {
+    if (currentDataset_.get() != NULL &&
+        (fast_ || currentFrame_ == frame))
+    {
+      // The frame has not changed since the previous call, no need to
+      // update the DICOM dataset
+      return; 
+    }
+      
+    currentDataset_.reset(loader_->DownloadDicom(frame));
+    currentFrame_ = frame;
+
+    if (currentDataset_.get() == NULL)
+    {
+      throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
+    }
+  }
+
+
+  void SeriesFrameRendererFactory::GetCurrentPixelSpacing(double& spacingX,
+                                                          double& spacingY) const
+  {
+    if (currentDataset_.get() == NULL)
+    {
+      // There was no previous call "ReadCurrentFrameDataset()"
+      throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
+    }
+    
+    GeometryToolbox::GetPixelSpacing(spacingX, spacingY, *currentDataset_);
+  }
+
+
+  double SeriesFrameRendererFactory::GetCurrentSliceThickness() const
+  {
+    if (currentDataset_.get() == NULL)
+    {
+      // There was no previous call "ReadCurrentFrameDataset()"
+      throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
+    }
+    
+    try
+    {
+      OrthancPlugins::DicomDatasetReader reader(*currentDataset_);
+
+      double thickness;
+      if (reader.GetDoubleValue(thickness, OrthancPlugins::DICOM_TAG_SLICE_THICKNESS))
+      {
+        return thickness;
+      }
+    }
+    catch (ORTHANC_PLUGINS_EXCEPTION_CLASS& e)
+    {
+    }
+
+    // Some arbitrary large slice thickness
+    return std::numeric_limits<double>::infinity();
+  }
+
+
+  SeriesFrameRendererFactory::SeriesFrameRendererFactory(ISeriesLoader* loader,   // Takes ownership
+                                                         bool fast) :
+    loader_(loader),
+    currentFrame_(0),
+    fast_(fast)
+  {
+    if (loader == NULL)
+    {
+      throw Orthanc::OrthancException(Orthanc::ErrorCode_InternalError);
+    }
+  }
+
+
+  bool SeriesFrameRendererFactory::GetExtent(double& x1,
+                                             double& y1,
+                                             double& x2,
+                                             double& y2,
+                                             const SliceGeometry& viewportSlice)
+  {
+    if (currentDataset_.get() == NULL)
+    {
+      // There has been no previous call to
+      // "CreateLayerRenderer". Read some arbitrary DICOM frame, the
+      // one at the middle of the series.
+      unsigned int depth = loader_->GetGeometry().GetSliceCount();
+      ReadCurrentFrameDataset(depth / 2);
+    }
+
+    double spacingX, spacingY;
+    GetCurrentPixelSpacing(spacingX, spacingY);
+
+    return FrameRenderer::ComputeFrameExtent(x1, y1, x2, y2, 
+                                             viewportSlice, 
+                                             loader_->GetGeometry().GetSlice(0), 
+                                             loader_->GetWidth(), 
+                                             loader_->GetHeight(),
+                                             spacingX, spacingY);
+  }
+
+
+  ILayerRenderer* SeriesFrameRendererFactory::CreateLayerRenderer(const SliceGeometry& viewportSlice)
+  {
+    size_t closest;
+    double distance;
+
+    bool isOpposite;
+    if (!GeometryToolbox::IsParallelOrOpposite(isOpposite, loader_->GetGeometry().GetNormal(), viewportSlice.GetNormal()) ||
+        !loader_->GetGeometry().ComputeClosestSlice(closest, distance, viewportSlice.GetOrigin()))
+    {
+      // Unable to compute the slice in the series that is the
+      // closest to the slice displayed by the viewport
+      return NULL;
+    }
+
+    ReadCurrentFrameDataset(closest);
+    assert(currentDataset_.get() != NULL);
+        
+    double spacingX, spacingY;
+    GetCurrentPixelSpacing(spacingX, spacingY);
+
+    if (distance <= GetCurrentSliceThickness() / 2.0)
+    {
+      SliceGeometry frameSlice(*currentDataset_);
+      return FrameRenderer::CreateRenderer(loader_->DownloadFrame(closest), 
+                                           frameSlice,
+                                           *currentDataset_, 
+                                           spacingX, spacingY,
+                                           true);
+    }
+    else
+    {
+      // The closest slice of the series is too far away from the
+      // slice displayed by the viewport
+      return NULL;
+    }
+  }
+
+
+  ISliceableVolume& SeriesFrameRendererFactory::GetSourceVolume() const
+  {
+    throw Orthanc::OrthancException(Orthanc::ErrorCode_BadSequenceOfCalls);
+  }
+}